hole vs bunghole

hole and bunghole both are nouns.

Word	Noun	Adjective	Verb	Adverb
hole	Yes	No	Yes	No
bunghole	Yes	No	No	No

As nouns, bunghole is a hyponym of hole; that is, bunghole is a word with a more specific, narrower meaning than hole:

hole (noun)	bunghole (noun)
an opening deliberately made in or through something	a hole in a barrel or cask; used to fill or empty it
one playing period (from tee to green) on a golf course	vulgar slang for anus
informal terms for the mouth
an opening into or through something
a depression hollowed out of solid matter
an unoccupied space
informal terms for a difficult situation
a fault

hole (verb)	bunghole (verb)
make holes in
hit the ball into the hole